Category Dictionary

Mariner
Dictionary

Mariner

Mariner Dictionary of astronomy, letter M American automatic probes for the exploration of the inner planets, that between 1962 and 1971 obtained important data on the nature of Mercury, Venus and Mars. The Mariner probes were a derivation of the Ranger probes, used for the exploration of the Moon.

Read More

Dictionary

Albedo

Albedo Dictionary of astronomy, letter A Albedo is the relationship between the intensity of the reflected light and the incident by a celestial body that does not emit its own light. It is measured with a number between 0 and 1, after it has been established that 0 is the albedo of a body that does not reflect any light and 1 is the albedo of a body that reflects all the incident light.
Read More
Dictionary

Astronomy Glossary: ​​D

Astronomy Glossary: ​​D A genius is someone who discovers that the stone that falls and the moon that does not fall represent a single phenomenon. Ernesto Sábato ABCDEFGHIJKLMNOPQRSTUVWXYZ Custom Search
Read More
Dictionary

Algol (double star)

Algol (double star) Dictionary of astronomy, letter A Algol is a double star of the constellation of Perseus (also called b Persei), so called, of the name of an Arab demon, because it changes periodically in luminosity. Algol is 82 light years from Earth. Algol is the prototype of the Eclipse Variables, double stars in which one component periodically hides the other, causing a decrease in brightness.
Read More
Dictionary

Aphelion

Afelio Dictionary of astronomy, letter A The aphelion is the most distant point of the orbit of a planet around the Sun. It is the opposite of the Perihelion, the closest point to the Sun. As established in the second of Kepler's laws, speed The translation of the planet is minimal in the aphelion. In orbital elements it is represented with a "Q".
Read More
Dictionary

Algonquin (observatory)

Algonquin (observatory) Dictionary of astronomy, letter A Algonquin is one of the most advanced research centers for radio astronomy studies. It is located in Algonquin Park, Ontario (Canada), and is equipped with a 46 m satellite dish. diameter. With this instrument, the large baseline Interferometry technique (from English Long Long Baseline Interferometry or VLBI) has been experimented, which consists in putting radio telescopes very distant from each other to obtain a high resolution power, that is, the capacity to distinguish very small details in distant celestial objects.
Read More
Dictionary

Love (asteroid)

Love (Asteroid) Dictionary of astronomy, letter A Love is the name of an Asteroid, discovered in 1932, which grazes the Earth's orbit, however remaining outside. By extension with the name Objects Love is usually indicated a class of asteroid objects whose orbits are very close to the Earth, but that do not cross the orbit.
Read More
Dictionary

Ames (study center)

Ames (study center) Astronomy dictionary, letter A The Ames space study center is one of NASA's study centers, founded in 1940 in Moffet Field, California. He has taken the name of Joseph Ames, the first president of the aerospace agency that preceded the constitution of NASA and was called NACA, initials of the National Advisory Committee for Aeronautics.
Read More
Dictionary

Astronomy Glossary: ​​Z

Astronomy Glossary: ​​Z The wise man is the one who wants to show his head to heaven; and the madman is the one who wants to put the sky in his head Gilbert Keith Chesterton ABCDEFGHIJKLMNOPQRSTUVWXYZ Custom Search
Read More
Dictionary

Light year or light year

Light year or light-year Dictionary of astronomy, letter A The light year or light-year is a unit of length used in astronomy to measure large distances. It is equal to the distance traveled by light in an average solar year, or more specifically, the distance a photon would travel in a vacuum at an infinite distance from any gravitational field or magnetic field, in a Julian year (365.
Read More
Dictionary

Altitude

Altitude Astronomy dictionary, letter A Altitude is the vertical distance between a conventional reference level (such as sea level) and the point considered. Altitude is positive if the point is above the reference level and negative if it is below. ◄ Previous Next ► Altacimutal Height ABCDEFGHIJKLMNOPQRSTUVWXYZ Custom Search
Read More
Dictionary

Antenna

Antenna Astronomy dictionary, letter A An antenna is an instrument used in electronics to propagate or receive radio or electromagnetic waves. It is essential to emit or receive radio, television, microwave, telephone and radar signals. Most antennas are made of wires or metal rods connected to the sending or receiving equipment.
Read More
Dictionary

Andromeda (galaxy of)

Andromeda (galaxy de) Astronomy dictionary, letter A The Andromeda galaxy is a star system similar to our Galaxy, but much larger. It is estimated that its diameter is approximately 200 thousand light years, twice the Milky Way, and the number of stars it contains is around 300 billion, triple.
Read More
Dictionary

Hour angle

Hour angle Astronomy dictionary, letter A The hour angle is the angular distance measured along the celestial equator from the local meridian to the celestial meridian, which passes through the considered body. It is measured in hours, in minutes and in seconds, or in degrees of arc: positive towards the West and negative towards the East.
Read More
Dictionary

Alouette

Alouette Astronomy Dictionary, letter A Alouette is the name of two Canadian scientific satellites built specifically to study the Ionosphere. They were launched from the United States on September 28, 1962 and November 28, 1965 respectively, within the scope of a cooperation program.
Read More
Dictionary

Angstrom (unit of measure)

Angstrom (unit of measure) Dictionary of astronomy, letter A The Angstrom is a unit of measure equivalent to ten thousand millionth of the meter, 0.000,000,000.1 meters, whose symbol is Å, used mainly to indicate the wavelengths of visible light In an inch fit 10 million angstroms.
Read More
Dictionary

Agena

Agena Astronomy Dictionary, letter A Agena is a very versatile small American missile, used from 1959 as the second section of the Thor, the Atlas and the Titan for a whole series of satellite launches (for example, the Discoverer series), of lunar (Ranger, Lunar Orbiter) and interplanetary (Mariner) probes.
Read More
Dictionary

Apogee

Apogee Dictionary of astronomy, letter A The apogee is the point of the orbit of the Moon, an artificial satellite or the trajectory of a space vehicle, which is furthest from the center of the Earth. It is the opposite of Perigee, the closest point to Earth. The ending -geo refers to the orbits around the Earth; the ending - helium to the orbits around the Sun and the ending - astronom refers to the orbits around a star.
Read More